Identification of clear skies from broadband pyranometer measurements and calculation of downwelling shortwave cloud effects

By C. Long, T. Ackerman. 2000

532 citations recorded by the source corpus.

Subfields: Atmospheric Science, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/f1e1c976a511dd4e8a127b5f46944a55cf0abccc

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atmospheric Science

1. Martin Wild
2. Clifford W. Hansen
3. Matthew J. Reno
4. Joshua S. Stein
5. Seiji Kato
6. Fred G. Rose
7. David R. Doelling
8. David Pagès

In Global and Planetary Change

1. Martin Wild
2. Clifford W. Hansen
3. Matthew J. Reno
4. Joshua S. Stein
5. Seiji Kato
6. Fred G. Rose
7. David Pagès
8. Josep Calbó

Citations in the corpus

• WRF-Solar: Description and Clear-Sky Assessment of an Augmented NWP Model for Solar Power Prediction (2016, methodology): “Verification samples were formed from all daytime minutes corresponding to clear skies in the observations, following Long and Ackerman (2000) to identify clear skies from observed GHI and DIF.”
• Global dimming and brightening: A review (2009, methodology): “[74] Sulfur trapped in ice cores in Greenland is indicative of the presence of sulfate aerosols downwind of the United States and Canada [McConnell et al., 2007]. These data show an increase of sulfur in Greenland ice cores from the 1940s to 1980s and a decrease thereafter, in line with northern Ame”
• Retrieving Cloud Characteristics from Ground-Based Daytime Color All-Sky Images (2006, methodology): “Similarly, the third distribution in the bottom plot, produced by the ARM Program using the shortwave flux analysis algorithm (Long and Ackerman 2000; Long and Gaustad 2004), agrees better with the adjusted values than the original.”
• Solar radiation budget and radiative forcing due to aerosols and clouds (2008, methodology): “for clear-sky detection is found in the work of Long and Ackerman [2000]. Figure 2 shows an example of clear-sky global and diffuse shortwave flux with measured global and”
• Global horizontal irradiance clear sky models : implementation and analysis. (2012, methodology): “Dupont, Haeffelin, and Long compared the results of cloud detection using shortwave and longwave radiation and Lidar backscatter measurements [96].”
• McClear: a new model estimating downwelling solar radiation at ground level in clear-sky conditions (2013, methodology): “Clear-sky instants selected by the algorithm of Long and Ackerman (2000) are in light-grey crosses.”
• A climatology of midlatitude continental clouds from the ARM SGP central facility: Part I: Low-level cloud macrophysical, microphysical, and radiative properties (2005, methodology): “(1998, 2002) SW↓(cloud)/SW↓(clear) 5% for daytime Long and Ackerman (2000) 1 MAY 2005 D O N G E T A L .”
• Empirical studies of cloud effects on UV radiation: A review (2005, methodology): “ture [e.g., Feister and Gericke, 1998; Long and Ackerman, 2000] usually based on total solar radiation measurements (both global and diffuse components).”
• SOLAR INFLUENCES ON CLIMATE (2010, unknown): “[65] An entirely different approach to cloud measurements, which is also unaffected by the long‐term calibration issues of satellite instruments, employs surface‐based cloud determinations, using solar radiation measurements [Duchon and O’Malley, 1999; Long and Ackerman, 2000;Calbó et al., 2001; Har”
• CERES Synoptic Product: Methodology and Validation of Surface Radiant Flux (2015, background): “Surface shortwave fluxes are primarily dependent on TOA insolation, solar zenith angle, cloud fraction, and aerosol (Long and Ackerman 2000).”